package com.sti.platform.service.impl;

import java.io.BufferedReader;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.io.UnsupportedEncodingException;
import java.util.Date;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Service;

import com.aisino.core.server.BaseService;
import com.aisino.tools.util.Assert;
import com.aisino.tools.util.StringUtils;
import com.sti.platform.dao.BackupDao;
import com.sti.platform.model.Backup;
import com.sti.platform.service.BackupService;

@Service("backupService")
public class BackupServiceImpl extends BaseService implements BackupService{

	
	@Autowired
	private BackupDao backupDao;
	
	@Value("${ip}")
	private String ip;
	
	@Value("${dbusername}")
	private String dbusername;
	
	@Value("${password}")
	private String password;
	
	@Value("${database}")
	private String database;
	
	@Value("${mysqlpath}")
	private String mysqlpath;
	
	@Value("${filepath}")
   private String filepath;

	
	
	@Override
	public String add( String type) {
		Backup b= new Backup();
		if(type==null){
			//如果type 为空 ，则默认为自动增长 ，设为2
			b.setType("2");
		}
		b.setType(type);
		b.setBackupdate(new Date());
		
		//开始备份
		try {
            Runtime rt = Runtime.getRuntime();
 
            System.out.println("mysqldump -h "+ip+"  -u"+dbusername+" -p"+password+" "+database);
            // 调用 调用mysql的安装目录的命令
            Process child = rt
                    .exec("mysqldump -h "+ip+"  -u"+dbusername+" -p"+password+" "+database);
            // 设置导出编码为utf-8。这里必须是utf-8
            // 把进程执行中的控制台输出信息写入.sql文件，即生成了备份文件。注：如果不对控制台信息进行读出，则会导致进程堵塞无法运行
            InputStream in = child.getInputStream();// 控制台的输出信息作为输入流
 
            InputStreamReader xx = new InputStreamReader(in, "UTF-8");
            // 设置输出流编码为utf-8。这里必须是utf-8，否则从流中读入的是乱码
 
            String inStr;
            StringBuffer sb = new StringBuffer("");
            String outStr;
            // 组合控制台输出信息字符串
            BufferedReader br = new BufferedReader(xx);
            while ((inStr = br.readLine()) != null) {
                sb.append(inStr + "\r\n");
            }
            outStr = sb.toString();
         
            // 要用来做导入用的sql目标文件：
            FileOutputStream fout = new FileOutputStream(filepath);
            OutputStreamWriter writer = new OutputStreamWriter(fout, "utf-8");
            writer.write(outStr);
            writer.flush();
            in.close();
            xx.close();
            br.close();
            writer.close();
            fout.close();
 
            System.out.println("结束");
 
        } catch (Exception e) {
            e.printStackTrace();
        }finally{
        	
        	super.save(b);
        	
        }
		
		
		return null;
	}

	@Override
	public String reovery(){
		
         String databaseName ="sti";
         
         Assert.isTrue(StringUtils.hasText(databaseName), "数据库名称不能为空...");
        try {
            Runtime runtime = Runtime.getRuntime();
            Process process = runtime
                    .exec(mysqlpath+"mysql.exe -h localhost -u"+dbusername+" -p"+password+" --default-character-set=utf8 "
                            + databaseName);
            OutputStream outputStream = process.getOutputStream();
            BufferedReader br = new BufferedReader(new InputStreamReader(
                    new FileInputStream(filepath), "utf-8"));
            String str = null;
            StringBuffer sb = new StringBuffer();
            while ((str = br.readLine()) != null) {
                sb.append(str + "\r\n");
            }
            str = sb.toString();
            OutputStreamWriter writer = new OutputStreamWriter(outputStream, "utf-8");
                   
            writer.write(str);
            writer.flush();
            outputStream.close();
            br.close();
            writer.close();
          
        } catch (UnsupportedEncodingException e) {
            e.printStackTrace();
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
		
		
		return "success";
	}
}
